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Problem Solving Forum (15)


If the walls of single-wythe CMU with core fill insulation become saturated, can they be adequately dried out for painting? If so, how?


Can lightweight block (CMU) be successfully coated to prevent water intrusion, or is it best to build with standard weight?


How can you determine the moisture content of a concrete block (CMU) wall, and how can you judge when the moisture level is low enough to paint?


What kind of initial treatment is the best defense against graffiti for rough-surfaced concrete block (CMU)?


Considering cost, productivity, and thoroughness, what is the best way to remove paint from cement blocks (CMUs)?


What kind of initial treatment is the best defense against graffiti for rough-surfaced concrete block (CMU)?


What is the best method of testing for moisture content in concrete masonry unit (CMU) walls before application of coatings?


What’s the best way to protect a masonry wall from freeze/thaw cycling?


What’s the best way to protect porous masonry from graffiti?


How can it be determined if moisture within a CMU wall is causing repeated coating failure? If so, can the source of moisture entry be accurately identified for correction?


RH probes are commonly used in concrete floors to determine moisture content. Can they be used in CMU walls or pre-cast walls?


If the walls of single-wythe CMU with core fill insulation become saturated, can they be adequately dried out for painting? If so, how?


Can efflorescence be removed from integrally colored CMU without damaging the appearance? How?


Can light-weight block (CMU) be successfully coated to prevent water intrusion, or is it best to build with standard weight?


How can you determine the moisture content of a concrete block (CMU) wall, and how can you judge when the moisture level is sufficiently low to paint?


 
 
   

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